Crestron Isys TPS-4500LV, Operation Manual, Page: 31 / 56

Crestron TPS-4500V & TPS-4500LV 12 Inch Tilt/Lectern Touchpanels
NOTE: “Other” signals are a combination of the three basic types (e.g. many
symbols accept either analog or serial signals; the combination is shown as a green
signal). The signal type is displayed on the Status Bar when the signal is highlighted.
For additional information, refer to Doc. 6120, Crestron SIMPL Windows Symbol
Guide. It may be downloaded from the Downloads | Product Manuals | Software
section of the Crestron website (
www.crestron.com) .
Digital Signals
A digital signal contains one bit of information and usually takes on one of two
values: 1 or 0. These two digits can represent the logical values true and false, and
they can be represented in an electronic device by the states on/off or high/low,
recognized as two voltage levels. (Other common descriptors are active/inactive.)
Analog Signals
Unlike digital signals, analog signals can vary continuously in value, in the same
manner as a parameter such as volume, temperature, or pressure. Analog signals
contain 16 bits of information, which means that this type of signal can have values
ranging from 0 to 65535 (2
16
-1). This 16-bit property makes analog signals useful for
controlling devices that do not have discrete settings, such as volume controllers,
pan/tilt head controllers, and lighting dimmers.
Serial Signals
Serial signals are much like analog signals, in that they, too, contain 16 bits of
information. However, whereas the value of an analog signal is used directly-to
control volume or temperature, for instance–the value of the serial signal is used as a
pointer to a location in memory that contains a string of characters. When a serial
signal is routed to a symbol, that symbol can identify the signal as serial rather than
analog and it will automatically look at the data it points to.
Thus serial signals are used to facilitate the transmission of serial data (strings of
characters). These signals can be generated by incoming data on a COM port or by a
symbol that has a serial output.
TPS-4500 Input/Output Signals
The TPS-4500 symbol provides up to 4000 digital input and output joins, 4000
analog input and output joins, and up to 999 serial input joins. The programmer
selects the signal types by clicking on the appropriate button at the top of the S
ymbol
Detail view when programming the panel.
The following tables list and give functional descriptions for the touchpanel outputs
and inputs.
Digital Output Signal Descriptions
OUTPUT DESCRIPTION
press 1 through press 4000 Notifies control system of button press (1 - 4000).
High/1 = Button being pressed
Low/0 = Button not being pressed
Operations Guide - DOC. 6160 12 Inch Tilt/Lectern Touchpanels with Video: TPS-4500V & TPS-4500LV
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